METHOD TO DETECT COMPLICATED DAMAGE OF ELECTRIC SYSTEM Russian patent published in 2012 - IPC H02H6/00 H02H3/16 H02H3/40 G01R31/08 

FIELD: electricity.

SUBSTANCE: method to detect a complicated damage of an electric system consists in the fact that the complicated damage is considered as a combination of simple damages of separate elements, and each elementary damage is detected with its own module trained to actuate in case of the complicated damage and not to actuate in case of damages alternative to the elementary one. Detection modules are implemented as submodules of actuation and blocking. Submodules are groups of 2D relays connected according to AND circuit and undergoing joint training.

EFFECT: improved detection capability of complicated damages covering two or more elements of the electric system.

2 cl, 9 dwg